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bekas [8.4K]
3 years ago
8

Can some one help me plz trying to figure out? Need help ASAP

Mathematics
1 answer:
zloy xaker [14]3 years ago
5 0

Answer:

a. = -35 \\ b. = 9a + 1 \\ c. = -35

Step-by-step explanation:

a. \\  =  >  \: 7a - 1 + 2a + 2 \\  \\  =  > 7( - 4) - 1 + 2( - 4) + 2 \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \: (a =  - 4) \\  \\  =  >  - 28 - 1 - 8 + 2 \\  \\  =  >  - 37 + 2 \\  \\  =  >  - 35 \\  \\  \\ b. \\  =  > 7a - 1 + 2a + 2 \\  \\  =  > 7a + 2a - 1 + 2 \\  \\  =  > 9a + 1 \\  \\  \\ c. \\  =  > 9a + 1 \\  \\  =  > 9( - 4) + 1 \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \: (a  =  - 4) \\  \\  =  >  - 36 + 1 \\  \\  =  >  - 35

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What is the factored form of 4x2 + 12x + 5? A. (2x + 4)(2x + 3) B. (4x + 5)(x + 1) C. (2x + 1)(2x + 5) D. (4x + 1)(x + 5)
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Read 2 more answers
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stellarik [79]

Answer:

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Step-by-step explanation:

When asked to solve by elimination, you put them on top of one another, like you're going to add it.

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See that 7y? You can cancel those out because one is negative, and one is positive. So those are gone. You finish adding the rest of the numbers as usual and solve for x.

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Hope this helped!

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2 years ago
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